AT91 SAMA7 SoC Clock Adjustments
Subsystems (2)
v4 cover AT91 SAMA7 SoC Clock Adjustments
From: Ryan Wanner <[email protected]>
This set has clock system adjustments for the AT91 clock system for sama7 SoC family.
The patch set updates the device tree phandle formatting for the sama7g54 SoC. This also adds names to the xtals so the driver can correclty find and name them in the clock tree.
Changes v1 -> v2:
- Add clk_hw struct to parent_data adjustment for the sama7g5.c driver.
- Add correction to sama7g54 dtsi main xtal phandles.
Changes v2 -> v3:
- Removed the empty line after the fixes tag.
- Correct commit messages to better explain the issue that this is fixing.
- Initialize parent_data index to 0.
Changes v3 -> v4:
- Add clock-output-names to the xtal nodes.
- Remove the clock driver changes since those are not needed for this set.
- Adjust cover letter message to reflect the changes in the v4.
Ryan Wanner (2):
ARM: dts: microchip: sama7g5: Adjust clock xtal phandle
ARM: dts: microchip: sama7d65: Add clock name property
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts | 18 ++++++++---------- arch/arm/boot/dts/microchip/sama7d65.dtsi | 2 ++ arch/arm/boot/dts/microchip/sama7g5.dtsi | 6 ++++-- 3 files changed, 14 insertions(+), 12 deletions(-)
Signature · 1 line
2.43.0
PATCH v4 1/2 ARM: dts: microchip: sama7g5: Adjust clock xtal phandle
From: Ryan Wanner <[email protected]>
Adjust clock xtal phandles to match the new xtal phandle formatting.
--- arch/arm/boot/dts/microchip/at91-sama7g5ek.dts | 18 ++++++++---------- arch/arm/boot/dts/microchip/sama7g5.dtsi | 6 ++++-- 2 files changed, 12 insertions(+), 12 deletions(-)
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts +8 -10
@@ -35,16 +35,6 @@ aliases { i2c2 = &i2c9; }; - clocks { - slow_xtal { - clock-frequency = <32768>; - }; - - main_xtal { - clock-frequency = <24000000>; - }; - }; - gpio-keys { compatible = "gpio-keys";
@@ -512,6 +502,10 @@ spi11: spi@400 { }; }; +&main_xtal { + clock-frequency = <24000000>; +}; + &gmac0 { #address-cells = <1>; #size-cells = <0>;
@@ -917,3 +911,7 @@ &vddout25 { vin-supply = <&vdd_3v3>; status = "okay"; }; + +&slow_xtal { + clock-frequency = <32768>; +};
arch/arm/boot/dts/microchip/sama7g5.dtsi +4 -2
@@ -117,13 +117,15 @@ map1 { }; clocks { - slow_xtal: slow_xtal { + slow_xtal: clock-slowxtal { compatible = "fixed-clock"; + clock-output-names = "slow_xtal"; #clock-cells = <0>; }; - main_xtal: main_xtal { + main_xtal: clock-mainxtal { compatible = "fixed-clock"; + clock-output-names = "main_xtal"; #clock-cells = <0>; };
Signature · 1 line
2.43.0
Claudiu Beznea
maintainerRe: [PATCH v4 1/2] ARM: dts: microchip: sama7g5: Adjust clock xtal phandle
Hi, Ryan,
Quoted 32 lines · On 23.05.2025 23:24, [email protected] wrote:
From: Ryan Wanner <[email protected]>
Adjust clock xtal phandles to match the new xtal phandle formatting.
Signed-off-by Ryan Wanner <[email protected]>--- arch/arm/boot/dts/microchip/at91-sama7g5ek.dts | 18 ++++++++---------- arch/arm/boot/dts/microchip/sama7g5.dtsi | 6 ++++-- 2 files changed, 12 insertions(+), 12 deletions(-)arch/arm/boot/dts/microchip/at91-sama7g5ek.dts +0
-10@@ -35,16 +35,6 @@ aliases { i2c2 = &i2c9; }; - clocks { - slow_xtal { - clock-frequency = <32768>; - }; - - main_xtal { - clock-frequency = <24000000>; - }; - }; - gpio-keys { compatible = "gpio-keys";
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts spi11: spi@400 { · line 508
Quoted 7 lines
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts +4
-0@@ -512,6 +502,10 @@ spi11: spi@400 { }; }; +&main_xtal { + clock-frequency = <24000000>; +}; +
Please keep it alphanumerically sorted.
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts &vddout25 { · line 917
Quoted 11 lines
arch/arm/boot/dts/microchip/at91-sama7g5ek.dts +4
-0&gmac0 { #address-cells = <1>; #size-cells = <0>;@@ -917,3 +911,7 @@ &vddout25 { vin-supply = <&vdd_3v3>; status = "okay"; }; + +&slow_xtal { + clock-frequency = <32768>; +};
Same for this one.
Quoted 11 lines
arch/arm/boot/dts/microchip/sama7g5.dtsi +1
-1@@ -117,13 +117,15 @@ map1 { }; clocks { - slow_xtal: slow_xtal { + slow_xtal: clock-slowxtal { compatible = "fixed-clock";
arch/arm/boot/dts/microchip/sama7g5.dtsi map1 { · line 130
Quoted 10 lines
arch/arm/boot/dts/microchip/sama7g5.dtsi +3
-1+ clock-output-names = "slow_xtal"; #clock-cells = <0>; }; - main_xtal: main_xtal { + main_xtal: clock-mainxtal { compatible = "fixed-clock"; + clock-output-names = "main_xtal"; #clock-cells = <0>; };
While at it, can you please also address usb_clk ?
Thank you,
Claudiu
PATCH v4 2/2 ARM: dts: microchip: sama7d65: Add clock name property
In reply to [email protected]From: Ryan Wanner <[email protected]>
Add clock-output-names to the xtal nodes, so the driver can correctly register the main and slow xtal.
This fixes the issue of the SoC clock driver not being able to find the main xtal and slow xtal correctly causing a bad clock tree.
--- arch/arm/boot/dts/microchip/sama7d65.dtsi | 2 ++ 1 file changed, 2 insertions(+)
arch/arm/boot/dts/microchip/sama7d65.dtsi +2 -0
@@ -38,11 +38,13 @@ cpu0: cpu@0 { clocks { main_xtal: clock-mainxtal { compatible = "fixed-clock"; + clock-output-names = "main_xtal"; #clock-cells = <0>; }; slow_xtal: clock-slowxtal { compatible = "fixed-clock"; + clock-output-names = "slow_xtal"; #clock-cells = <0>; }; };
Signature · 1 line
2.43.0
Claudiu Beznea
maintainerRe: [PATCH v4 2/2] ARM: dts: microchip: sama7d65: Add clock name property
Hi, Ryan,
Quoted 9 lines · On 23.05.2025 23:24, [email protected] wrote:
From: Ryan Wanner <[email protected]>
Add clock-output-names to the xtal nodes, so the driver can correctly register the main and slow xtal.
This fixes the issue of the SoC clock driver not being able to find the main xtal and slow xtal correctly causing a bad clock tree.
Fixes 261dcfad1b59 ("ARM: dts: microchip: add sama7d65 SoC DT")
Can you please prepare a similar fix for sam9x7. It is also affected by this, right?
Thank you,
Claudiu
Quoted 23 lines
Signed-off-by Ryan Wanner <[email protected]>--- arch/arm/boot/dts/microchip/sama7d65.dtsi | 2 ++ 1 file changed, 2 insertions(+)arch/arm/boot/dts/microchip/sama7d65.dtsi +2
-0@@ -38,11 +38,13 @@ cpu0: cpu@0 { clocks { main_xtal: clock-mainxtal { compatible = "fixed-clock"; + clock-output-names = "main_xtal"; #clock-cells = <0>; }; slow_xtal: clock-slowxtal { compatible = "fixed-clock"; + clock-output-names = "slow_xtal"; #clock-cells = <0>; }; };
Re: [PATCH v4 2/2] ARM: dts: microchip: sama7d65: Add clock name property
Quoted 10 lines · Claudiu Beznea
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Hi, Ryan,
Quoted 5 lines · On 23.05.2025 23:24, [email protected] wrote:
From: Ryan Wanner <[email protected]>
Add clock-output-names to the xtal nodes, so the driver can correctly register the main and slow xtal.
Quoted 7 lines
Quoted 4 lines
This fixes the issue of the SoC clock driver not being able to find the main xtal and slow xtal correctly causing a bad clock tree.
Fixes 261dcfad1b59 ("ARM: dts: microchip: add sama7d65 SoC DT")Can you please prepare a similar fix for sam9x7. It is also affected by this, right?
The driver looks for the xtal differently in the sam9x75 than in the SAMA7 clock drivers, so it is not immediately affected. But I will add a sam9x7 in the v2 of the patch since in the future it will be needed.
Thank you,
Ryan
Quoted 28 lines
Thank you,
ClaudiuQuoted 23 lines
Signed-off-by Ryan Wanner <[email protected]>--- arch/arm/boot/dts/microchip/sama7d65.dtsi | 2 ++ 1 file changed, 2 insertions(+)arch/arm/boot/dts/microchip/sama7d65.dtsi +2
-0@@ -38,11 +38,13 @@ cpu0: cpu@0 { clocks { main_xtal: clock-mainxtal { compatible = "fixed-clock"; + clock-output-names = "main_xtal"; #clock-cells = <0>; }; slow_xtal: clock-slowxtal { compatible = "fixed-clock"; + clock-output-names = "slow_xtal"; #clock-cells = <0>; }; };